Anti-disturbance high-precision measuring method for measuring water level of water network

The invention provides an anti-disturbance high-precision measurement method for measuring the water level of a water network, and belongs to the technical field of channel water level measurement. The method comprises the following steps: modeling a water network; segmenting the water network, selecting a water network section according to the terrain and the water channel change, and obtaining information of a plurality of water network sections through the three-dimensional terrain of the water network; a sensor is used for collecting water level information, and flow matrixes at different moments are obtained; performing active disturbance rejection and filtering processing on the water level signal to obtain a processed water level signal; if the water level of each water network section is measured or not, the water network global water level is obtained according to the processed water level signals. According to the invention, the problem of inaccurate monitoring caused by the influence of water level